Revealing mistake: The headless motorcycle rider's torso and arms are not in proportion to a real motorbike rider. The torso is obviously made larger to accommodate the stunt bike rider.
Revealing mistake: The crocodile that Steve wrestles with is obviously fake.
Revealing mistake: When Willie catches Rockford and Rocky trespassing on the posted land, as Willie says, "No season on varmints," this closeup and the following closeup are flipped shots, note his shirt buttons. (00:14:10)